Updated Readme and added dev dependencies and configs.

- Removed Seaborn requirement from example code in Readme
- Added `dev-requirements.txt` for pip installation of dev tools
- Added references to dev tool config files
- Linted Readme

Author: roycoding

README.md

@@ -1,5 +1,6 @@
 # slots
-### *A multi-armed bandit library for Python*
+
+## *A multi-armed bandit library for Python*
 
 Slots is intended to be a basic, very easy-to-use multi-armed bandit library for Python.
 
@@ -8,44 +9,48 @@ Slots is intended to be a basic, very easy-to-use multi-armed bandit library for
 [![Downloads](https://pepy.tech/badge/slots)](https://pepy.tech/project/slots)
 
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
-[![type hints with mypy](https://img.shields.io/badge/type%20hints-mypy-brightgreen)]()
-
+[![type hints with mypy](https://img.shields.io/badge/type%20hints-mypy-brightgreen)](http://mypy-lang.org/)
 
+### Author
 
-#### Author
 [Roy Keyes](https://roycoding.github.io) -- roy.coding@gmail
 
-#### License: MIT
-See [LICENSE.txt](https://github.com/roycoding/slots/blob/master/LICENSE.txt)
+### License: MIT
 
+See [LICENSE.txt](https://github.com/roycoding/slots/blob/master/LICENSE.txt)
 
 ### Introduction
+
 slots is a Python library designed to allow the user to explore and use simple multi-armed bandit (MAB) strategies. The basic concept behind the multi-armed bandit problem is that you are faced with *n* choices (e.g. slot machines, medicines, or UI/UX designs), each of which results in a "win" with some unknown probability. Multi-armed bandit strategies are designed to let you quickly determine which choice will yield the highest result over time, while reducing the number of tests (or arm pulls) needed to make this determination. Typically, MAB strategies attempt to strike a balance between "exploration", testing different arms in order to find the best, and "exploitation", using the best known choice. There are many variation of this problem, see [here](https://en.wikipedia.org/wiki/Multi-armed_bandit) for more background.
 
 slots provides a hopefully simple API to allow you to explore, test, and use these strategies. Basic usage looks like this:
 
 Using slots to determine the best of 3 variations on a live website.
+
 ```Python
 import slots
 
 mab = slots.MAB(3, live=True)
 ```
 
 Make the first choice randomly, record responses, and input reward 2 was chosen. Run online trial (input most recent result) until test criteria is met.
+
 ```Python
 mab.online_trial(bandit=2,payout=1)
 ```
 
 The response of `mab.online_trial()` is a dict of the form:
+
 ```Python
 {'new_trial': boolean, 'choice': int, 'best': int}
 ```
+
 Where:
+
 - If the criterion is met, `new_trial` = `False`.
 - `choice` is the current choice of arm to try.
 - `best` is the current best estimate of the highest payout arm.
 
-
 To test strategies on arms with pre-set probabilities:
 
 ```Python
@@ -55,6 +60,7 @@ b.run()
 ```
 
 To inspect the results and compare the estimated win probabilities versus the true win probabilities:
+
 ```Python
 # Current best guess
 b.best()
@@ -72,13 +78,13 @@ b.bandits.probs
 By default, slots uses the epsilon greedy strategy. Besides epsilon greedy, the softmax, upper confidence bound (UCB1), and Bayesian bandit strategies are also implemented.
 
 #### Regret analysis
+
 A common metric used to evaluate the relative success of a MAB strategy is "regret". This reflects that fraction of payouts (wins) that have been lost by using the sequence of pulls versus the currently best known arm. The current regret value can be calculated by calling the `mab.regret()` method.
 
 For example, the regret curves for several different MAB strategies can be generated as follows:
-```Python
 
+```Python
 import matplotlib.pyplot as plt
-import seaborn as sns
 import slots
 
 # Test multiple strategies for the same bandit probabilities
@@ -104,8 +110,7 @@ for t in range(10000):
         s['regret'].append(s['mab'].regret())
 
 # Pretty plotting
-sns.set_style('whitegrid')
-sns.set_context('poster')
+plt.style.use(['seaborn-poster','seaborn-whitegrid'])
 
 plt.figure(figsize=(15,4))
 
@@ -118,13 +123,15 @@ plt.ylabel('Regret')
 plt.title('Multi-armed bandit strategy performance (slots)')
 plt.ylim(0,0.2);
 ```
-![](./misc/regret_plot.png)
+
+![Regret plot](./misc/regret_plot.png)
 
 ### API documentation
-For documentation on the slots API, see [slots-docs.md](https://github.com/roycoding/slots/blob/master/docs/slots-docs.md).
 
+For documentation on the slots API, see [slots-docs.md](https://github.com/roycoding/slots/blob/master/docs/slots-docs.md).
 
 ### Todo list:
+
 - More MAB strategies
 - Argument to save regret values after each trial in an array.
 - TESTS!
@@ -138,3 +145,7 @@ The current development environment uses:
 - pytest >= 5.3 (5.3.2)
 - black >= 19.1 (19.10b0)
 - mypy = 0.761
+
+You can pip install these easily by including `dev-requirements.txt`.
+
+For mypy config, see `mypy.ini`. For black config, see `pyproject.toml`.

dev-requirement.txt

@@ -0,0 +1,3 @@
+mypy>=0.761
+black>=19.10b0
+pytest>=5.3.2

pyproject.toml

@@ -0,0 +1,2 @@
+[tool.black]
+line-length = 79